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Product Name: RF Repeater / Signal Amplifier Working Frequency: Customizable Noise Figure: ≤ 6dB AGC / ALC: Supported Dimensions: 690mm X 420mm X 260mm Weight: 55kg 37dBm Tri-Band GSM900 / Dcs1800 / WCDMA2100 , RF Repeater / Signal Amplifier   Model: VR-4390-GW   Product Instructions:               The GSM&DCS&WCDMA Tri-Band RF Repeater (RFR) is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality in GSM900&DCS1800&WCDMA system. And its easy installation and maintenance can help carrier get fast return.       The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.   Product Features:   Band-Selective RF Repeater: To amplify all signals in the whole band (bandwidth is customized) Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding Highly selective channel selector can process1 2 channels simultaneously No interference to BTS by adopting linear amplifier with high gain and low noise Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink RS-232 port provides a link to a notebook for local supervision or to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise repeater's working status and download operational parameters to the repeater   Applications:   To expand signal coverage or fill signal blind area where GSM and WCDMA signal is weak or unavailable. Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots, etc.   Technical Specifications:   Items GSM 900&DCS1800 WCDMA2100 Working Frequency (customized) Uplink 890~915&1710~1785 MHz (Customized) 1920~1980 MHz(Customized) Downlink 935~960&1805~1880MHz (Customized) 2110~2170 MHz (Customized) Gain ≥ 90dB Gain Adjustment Range 1~31 dB @ step of 1 dB Output Power 37dBm Adjacent Channel Power Ratio (ACPR) - P ≥ 31 dBm: (Offset 5MHz) ≤ 49dBc P ≥ 31 dBm: (Offset 10MHz) ≤ 54dBc P P Voltage Standing Wave Ratio Error Vector Magnitude (EVM) - ≤ 12.5% Out-of-Band Gain - 2.7 ≤ f_offset 3.5 ≤ f_offset 7.5 ≤ f_offset 12.5 ≤ f_offset: ≤ 30dB Peak Code Domain Error (PCDE) - ≤ -35dB Noise Figure ≤ 6dB In-band Ripple ≤ 3dB(GSM)/ ≤ 5dB(DCS) /≤ 3dB(WCDMA@3.84MHz) System Delay ≤ 5.0μSec Spurious Emission Within working band: ≤ -15dBm/30kHz 9kHz~1GHz: ≤ -36dBm/30kHz 1GHz~12.75GHz: ≤ -30dBm/30kHz Comply with 3GPP TS 25.106 V6.0.0 In-band Intermodulation Attenuation ≤ -40dBc / 30kHz (measured under rated output power) Comply with 3GPP TS 25.106 V6.0.0 I/O Impedance 50Ω RF Connector N-Type (Female)(one BTS Port and one MS port) AGC / ALC Supported Temperature Range Operation: -25°C ~ + 55°C / Storage: -30°C ~ +60°C Relative Humidity Range ≤ 95% (non condensing) Power Supply (customized) DC +24V / AC 220V±15%, 50Hz Backup Power Supply (optional) 4 hours Dimensions 690mm X 420mm X 260mm Weight 55kg NMS Monitoring Function TTL Signal (dry connection) generated forreal-time alarm for door status, temperature, power supply, LNA, VSWR, etc; Remote control such as turn on/off, increasing/decreasing output power, etc; Real-time status for output/input power, UL/DL gain, all status of repeater etc.    

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